After image.: An over stimulation of the photoreceptors of the retina causes an after image after the flash.
Answered 8/26/2013
5k views
2 doctors weighed in across 2 answers
A doctor has provided 1 answer
2 doctors weighed in across 2 answers
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question